Question 1

What is OKX DEX?

Accepted Answer

OKX DEX is a DEX (Decentralized Exchange) and cross-chain bridge aggregator. We find the best onchain liquidity for trading any assets seamlessly. Our X Routing algorithm finds the best price across every DEX. We compare prices from Liquidity Providers (LPs) with the best liquidity pools, split orders, and take into consideration prices, slippage, and network fees.

Question 2

What is the difference between swap and bridge (i.e. cross-chain swap)?

Accepted Answer

Swap refers to the conversion of crypto within the same network, where the payment and receipt of tokens occur on a single network. Bridge (i.e. cross-chain swap) refers to the conversion of assets across different networks, where the tokens you pay and tokens you receive are on separate networks.

Question 3

Why do trades fail?

Accepted Answer

1. Insufficient network fee. During times of network congestion, network fees may skyrocket. Miners prioritize transactions with higher network fees, so if your transaction isn’t picked up by a miner for an extended period, it can result in transaction failure. Therefore, when initiating a transaction, it’s recommended to use the default values recommended by the platform.
2. Exceeded slippage. In volatile markets, liquidity depths can change. If the trading amount falls below the required minimum, the contract may halt the transaction, leading to a failed transaction due to exceeded slippage.
3.Duplicate transactions. If a user initiates multiple identical transactions simultaneously, but their balance is only sufficient to cover the first transaction, subsequent transactions will fail.

Question 4

What to do when I don’t have enough balance for the network fee?

Accepted Answer

You can purchase the corresponding tokens on the OKX Exchange and withdraw them to your wallet address, or you can use OKX DEX’s Swap for gas feature, which allows you to quickly swap mainstream assets such as USDT, USDC, DAI, and WETH into gas tokens.

Question 5

Do I still need to pay network fees after a transaction has failed?

Accepted Answer

Yes, you need to pay network fees. When you send/transfer tokens, do contract interaction or engage in any activities that occur on a network, you must pay network fees to miners or validators for processing the transaction. Since miners or validators consume network resources in processing the transaction, the network fee is required whether the transaction is successful or not.

Question 6

What is slippage?

Accepted Answer

Slippage refers to the price difference between the expected price of a trade and its actual execution price. Slippage is an implicit cost of trading and is inevitable in most trades, especially in a DEX. Slippage becomes more prominent during market volatility or when there is insufficient liquidity on the trading platform.

Question 7

How can slippage be avoided?

Accepted Answer

Slippage cannot be completely avoided, but its impact can be minimized in three ways:
1. The best way is to choose assets with high trading volume and liquidity. 
2. You can opt for transactions with smaller amounts, which are more likely to be executed, instead of placing large orders directly. 
3. Consider adjusting the slippage tolerance during price fluctuations, where slippage may exceed the preset limit when your transaction is executed. In this case, increasing slippage could avoid transaction failure, but it also means you can't get a good price. Please proceed with caution.

Question 8

Why trading some tokens requires a higher slippage setting?

Accepted Answer

Some tokens have a higher slippage tolerance due to the presence of transaction taxes, such as SAFEMOON, which are used for liquidity pool buy-back, token burning, and rewarding token holders. To help you trade these tokens, OKX DEX has launched automated slippage to improve the success rate of these trades at the current optimal slippage level.

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